Governor or regulating valve.



No. 772,369. PATENTED OCT. 18, 1904.

J. E. PARRISH. GOVERNOR 0 REGULATING VALVE.

APPLICATION FILED 1130.15, 1902.

H0 M ODEL.

UNITED STATES Patented October 18, 1904.

PATENT OFFICE.

OVERNOR OR REGULATING VALVE.

SPECIFICATION forming part of Letters Patent No. 772,369, dated October18, 1904.

Application filed December 15, 1902. Serial No. 135,203. (No model.)

To all whom, it may concern.-

Be it known that I, JUSTIN E. PARRISH, a citizen of the United States,residing at Scranton, in the county of Lackawanna and State ofPennsylvania, have invented certain new and useful Improvements inGovernor or Regulate ing Valves, of which the following is aspecification.

This invention relates to valves governing or regulating the flow ofliquids, such as may be used for cutting off the supply in a pipeleading to aflushing-tank, oil-tank, or the like; and the objects of theinvention are to provide a regulation-valve in which the actuating-floatis directly connected to the delivery pipe, to render such valves moresensitive, to protect the float operating said valves from becomingweighted with the liquid in which it floats, to simplify theconstruction of such valves, and to render them more efficientgenerally.

To these ends the invention consists of the construction, arrangement,and combination of the several parts, as herein specified, andillustrated in the accompanying drawings, in which Figure 1 is a sideelevation,partly in section, with a part of the valve-casing brokenaway. Fig. 2 is a view of several members of a modified form of thevalve, partially separated from each other. Fig. 3 is a view in detail,showing the construction of the upper end of the float-stem when asliding valve is used. Fig. 4 is a view in cross-section, taken on theline a: a; of Fig. 3. bodying my invention as applied to a turnvalvelocated in the delivery-pipe.

Similar characters of reference denote like and corresponding partsthroughout the several views.

Referring to the drawings, 1 denotes a section of a delivery-pipeutilized as a float-stem for the float 11, having on its upper end thehollow cylindrical valve 2, which is slidable within the innervalve-casing 3, having an internallythreaded flange 4 and anexternally-threaded rim 5, adapted to be screwed into aninternally-threaded ring 6, having an annular flange 6, on which theshoulder 2 of the valve 2 rests when the valve is fully open. An outervalve-casing 7, having an external Fig. 5 is a substitute formemscrew-thread 8, has a screw-threaded connection with the flange 4, thesaid member 7 being provided with a Wrench-shank 10 and a threaded pipeconnection9 or 9, according as it is to be connected with an external oran internal 5 5' thread of a pipe. Integrally constructed with themember 3 is the dome 3, having ports 14 14, &c., which lead from theinterior of the member 7 to the interior of the delivery-pipe andfloat-stem l. a hollow sphere constructed from sheet metal and issecured to the pipe or stem 1 by means of a sheath or collar 12 slidingthereon and provided with a set-screw 13 in said collar 12,

arranged to engage with the pipe or stem 1 5 at any suitable position.

In the substitute form shown in Fig. 5 a pipe 1, adapted to be connectedto the delivery-pipe by means of the threaded shank 9" and beingprovided with the ordinary turn- 7 valve 15, is shown. When this form isused, the sheath 12", sliding on the hollow pipe 1 and connected withthe float 11, operates the turn-valve by means of the levers l6 and 17,

pivoted together at 18 and to the collar 12 at 19. I

I do not wish to be confined to the exact descriptions shown anddescribed, as I have shown a typical slide-valve and typical turnvalveembodying my invention. details in either form might be varied withoutdeparting from the general spirit thereof.

, The operation of the device is now. readily explained.

Let the threaded shank 9, 9, or 9, as the 5 case may be, be connected toa vertical delivery-pipe delivering liquid downward into a tank orreservoir, the liquid passing through the interior of the pipe 1 or 1,filling the tank within the body of which the float 11 or 11 9 hangs.Now supposing the form in Fig. 1 is used, the flow being deliveredthrough the interior of the outer valve-casing 7 through the ports 14 14will not be interrupted until the liquid in the tank reaches the float11, when the buoyant force thereof is designed to lift the said float,sliding the cylindrical cut-off 2 over the ports 14 on the interior ofthe dome 3. When it has been raised to the position shown in the dottedlines in Fig. 1, the entire The float 11 is preferably 60 Many of the 80flow is cut ofl; but the ports 14 being cut in the form of pointedarches a gradually-decreasing portion of the flow is cut ofl' during theconsecutive stages of the lifting of the valve, whereby the flow iscontrolled or kept equivalent to any continuous or intermittent drainageor waste from the tank below.

The operation of the substitute form shown in Fig. 5 is as readilyunderstood. The position shown in full lines in Fig. 5 indicates thevalve as being closed or absolutely shut off; but when the float 11 isnot supported by the liquid in the body of the tank the float is droppeddownward into the position of the dotted lines or any positionintermediate between the two, in which position the turnvalve allows theliquid to pass at such rate as is required.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

In a regulating-valve, a valve-casing, comprising a member having'athreaded nipple, a member connected thereto having a portion of lessdiameter than the portion connected to the first-named member and a ringpartially inclosing the end of the second-named memher; the saidsecond-named member having a dome provided with ports; said domestanding parallel with the Wall of the first-named memher; and incombination therewith, a valve slidable in the dome and second-namedmemher, a combined valve-stem and pipe integral with the Valve extendingthrough the end of the second-named member and a float for actuating thevalve-stem.

In testimony whereof I aflix my signature in presence of two witnesses.

JUSTIN E. PARRISH.

WVitnesses:

I P. SMITH, F. J. DE LACEY.

